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National Stock Number:
5310-00-220-2521
Federal Supply Class:
5310
National Item Identification Number:
002202521
Description:
NUT,PLAIN,ROUND
Detail:
A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use POST, ELECTRICAL-MECHANICAL EQUIPMENT. See also NUT (1), PLAIN, KNURLED. (When height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
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Manufacturer Information:
| 65370-04140-102 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| DRIVE POINT DEPTH | 0.187 INCHES NOMINAL | | DRIVE POINT QUANTITY | 8 | | DRIVE POINT WIDTH | 0.188 INCHES NOMINAL | | DRILLED HOLE DIAMETER | 0.094 INCHES NOMINAL | | COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL NUT | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM | | HOLE CONFIGURATION STYLE | CONFIGURATION F | | HOLE TYPE AND QUANTITY | 8 DRILLED | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OVERALL | | NOMINAL THREAD SIZE | 1.375 INCHES | | NUT DIAMETER | 1.906 INCHES NOMINAL | | NUT THICKNESS | 0.312 INCHES NOMINAL | | NUT STYLE | ROUND | | SMALL END DIAMETER | 1.656 INCHES NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SS8416 FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PHOSPHATE OVERALL | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES | UNEF | | THREAD QUANTITY PER INCH | 18 | | UNDERCUT THICKNESS | 0.125 INCHES NOMINAL |
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